We use Outlook for our email. My daughter uses Gmail where she lives.
She says every time she receives an e-mail reply from me there is a vertical line down the left side of it, and if she “removes format” (or something like that), the line goes away, but then she then gets all those “carrot” signs and has to go in and remove those!
Yet, when she sends an e-mail to me, it looks fine. I don’t think I ever remember seeing that vertical line or carrots from her e-mails.
I have received e-mail from others that look like that though.
What’s the story on this! How and why does this happen to some and not others?
In a word: reply. You said it yourself.
What you’re seeing is very common among email programs. It’s an indicator that you’re replying to a message.
It’s useful. Even better, it’s configurable.